From: Yao Qi <qiyaoltc@gmail.com>
To: Alan Hayward <Alan.Hayward@arm.com>
Cc: "gdb-patches\@sourceware.org" <gdb-patches@sourceware.org>,
nd <nd@arm.com>
Subject: Re: [PATCH 1/7] Regcache: Subclass ptid functionality to target_regcache
Date: Wed, 23 Aug 2017 10:33:00 -0000 [thread overview]
Message-ID: <86mv6qr2u9.fsf@gmail.com> (raw)
In-Reply-To: <6AAAA989-5B31-4E54-963C-57F2B7452BD7@arm.com> (Alan Hayward's message of "Thu, 17 Aug 2017 08:47:15 +0000")
Alan Hayward <Alan.Hayward@arm.com> writes:
> All ptid related functions are moved to target_regcache.
>
What is the rationale of this change? The regcache is per-thread, even
it is disconnected from target.
> A regcache retains the ptid () method, which always returns -1.
ptid_t (-1) is minus_one_ptid, which has a special meaning.
> This ensures users can always test if a regcache is attached to a
> target, without needing to know if it is a target_regcache.
When do we need such test ("if a regcache is attached to a target")?
--
Yao (齐尧)
next parent reply other threads:[~2017-08-23 10:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <6AAAA989-5B31-4E54-963C-57F2B7452BD7@arm.com>
2017-08-23 10:33 ` Yao Qi [this message]
2017-08-23 13:24 ` Alan Hayward
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